Overcurrent Protection (Other Causes)

What does E04. mean?

This overcurrent fault occurs due to conditions not directly tied to constant speed, acceleration, or deceleration, often observed during startup or when the motor is operating at 0 Hz with DC injection braking. It means the inverter's protection circuit was activated unexpectedly, typically around 200% of the rated output current, due to various external or tuning factors.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Perform a thorough check for any output short-circuits or ground faults in the motor wiring.

2. 4

   Review the load conditions and mechanical system for any unusual resistance or binding.